bb3353a272
* lib/libc+tcc.c: [!NOISY_FLOATS, !NOISY_TIMES]: Silence stubs. * lib/gcc.c: Likewise. * lib/binutils.c: Likewise.
156 lines
2.8 KiB
C
156 lines
2.8 KiB
C
/* -*-comment-start: "//";comment-end:""-*-
|
|
* Mes --- Maxwell Equations of Software
|
|
* Copyright © 2017,2018 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
|
|
*
|
|
* This file is part of Mes.
|
|
*
|
|
* Mes is free software; you can redistribute it and/or modify it
|
|
* under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 3 of the License, or (at
|
|
* your option) any later version.
|
|
*
|
|
* Mes is distributed in the hope that it will be useful, but
|
|
* WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with Mes. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include <setjmp.h>
|
|
#include <stdarg.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <time.h>
|
|
#include <signal.h>
|
|
#include <sys/mman.h>
|
|
#include <sys/time.h>
|
|
#include <unistd.h>
|
|
|
|
int errno;
|
|
|
|
void
|
|
longjmp (jmp_buf env, int val)
|
|
{
|
|
val = val == 0 ? 1 : val;
|
|
asm ("mov 0xc(%ebp),%eax\n\t" // val
|
|
"mov 0x8(%ebp),%ebp\n\t" // env*
|
|
|
|
"mov 0x4(%ebp),%ebx\n\t" // env->__pc
|
|
"mov 0x8(%ebp),%esp\n\t" // env->__sp
|
|
"mov 0x0(%ebp),%ebp\n\t" // env->__bp
|
|
"jmp *%ebx\n\t" // jmp *PC
|
|
);
|
|
// not reached
|
|
exit (42);
|
|
}
|
|
|
|
#if 0
|
|
int
|
|
setjmp_debug (jmp_buf env, int val)
|
|
{
|
|
int i;
|
|
#if 1
|
|
i = env->__bp;
|
|
i = env->__pc;
|
|
i = env->__sp;
|
|
#else
|
|
i = env[0].__bp;
|
|
i = env[0].__pc;
|
|
i = env[0].__sp;
|
|
#endif
|
|
return val == 0 ? 1 : val;
|
|
}
|
|
#endif
|
|
|
|
int
|
|
setjmp (jmp_buf env)
|
|
{
|
|
int *p = (int*)&env;
|
|
env[0].__bp = p[-2];
|
|
env[0].__pc = p[-1];
|
|
env[0].__sp = (int)&env;
|
|
return 0;
|
|
}
|
|
|
|
unsigned long long
|
|
__udivdi3 (unsigned long long a, unsigned long long b)
|
|
{
|
|
int ai = a;
|
|
int bi = b;
|
|
return ai / bi;
|
|
}
|
|
|
|
unsigned long long
|
|
__umoddi3 (unsigned long long a, unsigned long long b)
|
|
{
|
|
int ai = a;
|
|
int bi = b;
|
|
return ai % bi;
|
|
}
|
|
|
|
unsigned long long
|
|
__lshrdi3 (unsigned long long a, int b)
|
|
{
|
|
return a >> b;
|
|
}
|
|
|
|
long long
|
|
__ashldi3 (long long a, int b)
|
|
{
|
|
return a << b;
|
|
}
|
|
|
|
long long
|
|
__ashrdi3 (long long a, int b)
|
|
{
|
|
return a >> b;
|
|
}
|
|
|
|
long double
|
|
__floatundixf (unsigned long long a)
|
|
{
|
|
#if NOISY_FLOATS
|
|
eputs ("__floatundix stub\n");
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
unsigned long long
|
|
__fixunsxfdi (double a1)
|
|
{
|
|
#if NOISY_FLOATS
|
|
eputs ("__fixunsxfdi stub\n");
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
unsigned long long
|
|
__fixdfdi (double a1)
|
|
{
|
|
#if NOISY_FLOATS
|
|
eputs ("__fixdfdi stub\n");
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
unsigned long long
|
|
__fixxfdi (double a1)
|
|
{
|
|
#if NOISY_FLOATS
|
|
eputs ("__fixxfdi stub\n");
|
|
#endif
|
|
return 0;
|
|
}
|
|
|
|
unsigned long long
|
|
__fixsfdi (double a1)
|
|
{
|
|
#if NOISY_FLOATS
|
|
eputs ("__fixsfdi stub\n");
|
|
#endif
|
|
return 0;
|
|
}
|